/// <summary>
/// Creates a new browser object with a set of filters.
/// </summary>
public AreaBrowser(
ISystemContext context,
ViewDescription view,
NodeId referenceType,
bool includeSubtypes,
BrowseDirection browseDirection,
QualifiedName browseName,
IEnumerable <IReference> additionalReferences,
bool internalOnly,
AreaState area)
:
base(
context,
view,
referenceType,
includeSubtypes,
browseDirection,
browseName,
additionalReferences,
internalOnly)
{
m_stage = Stage.Begin;
if (area != null)
{
m_area = AreaState.GetDirectory(context, area.NodeId);
m_isRoot = area.IsRoot;
}
}
/// <summary>
/// Validates an area, creates the node and assigns node ids to all children.
/// </summary>
public bool ValidateArea(ISystemContext context, NodeState node)
{
// only need to validate once.
node.OnValidate = null;
DirectoryInfo directory = AreaState.GetDirectory(context, node.NodeId);
if (directory == null || !directory.Exists)
{
return(false);
}
// initialize the area from the type model.
node.Create(context, node.NodeId, node.BrowseName, null, false);
// assign the child node ids.
AssignChildNodeIds(context, node);
return(true);
}